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@ARTICLE{Rostek:878391,
author = {Rostek, A. and Loza, K. and Heggen, M. and Epple, M.},
title = {{X}-ray powder diffraction to analyse bimetallic
core–shell nanoparticles (gold and palladium; 7–8 nm)},
journal = {RSC Advances},
volume = {9},
number = {46},
issn = {2046-2069},
address = {London},
publisher = {RSC Publishing},
reportid = {FZJ-2020-02827},
pages = {26628 - 26636},
year = {2019},
abstract = {A comparative X-ray powder diffraction study on
poly(N-vinyl pyrrolidone) (PVP)-stabilized palladium and
gold nanoparticles and bimetallic Pd–Au nanoparticles
(both types of core–shell nanostructures) was performed.
The average diameter of Au and Pd nanoparticles was 5 to 6
nm. The two types of core–shell particles had a core
diameter of 5 to 6 nm and an overall diameter of 7 to 8 nm,
i.e. a shell thickness of 1 to 2 nm. X-ray powder
diffraction on a laboratory instrument was able to
distinguish between a physical mixture of gold and palladium
nanoparticles and bimetallic core–shell nanoparticles. It
was also possible to separate the core from the shell in
both kinds of bimetallic core–shell nanoparticles due to
the different domain size and because it was known which
metal was in the core and which was in the shell. The
spherical particles were synthesized by reduction with
glucose in aqueous media. After purification by multiple
centrifugation steps, the particles were characterized with
respect to their structural, colloid-chemical, and
spectroscopic properties, i.e. particle size, morphology,
and internal elemental distribution. Dynamic light
scattering (DLS), differential centrifugal sedimentation
(DCS), atomic absorption spectroscopy (AAS),
ultraviolet-visible spectroscopy (UV-vis), high-angle
annular dark field imaging (HAADF), and energy-dispersed
X-ray spectroscopy (EDX) were applied for particle
characterization.},
cin = {ER-C-1},
ddc = {540},
cid = {I:(DE-Juel1)ER-C-1-20170209},
pnm = {143 - Controlling Configuration-Based Phenomena (POF3-143)
/ DFG project 286659497 - Bimetallische Nanopartikel der
Platinmetalle (Ru, Rh, Pd, Os, Ir, Pt) und des Silbers:
Synthese, Mikrostruktur und biologische Wirkung (286659497)},
pid = {G:(DE-HGF)POF3-143 / G:(GEPRIS)286659497},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000483739800014},
doi = {10.1039/C9RA05117A},
url = {https://juser.fz-juelich.de/record/878391},
}